SEE: First visuals of grenade blast at Jammu bus stand, tension in area

Following the attack, security agencies have cordoned off the entire area.

Several people were injured in a bomb blast that took place at Jammu bus stand on Thursday, according to reports. The explosion took place inside a bus. All the injured people were rushed to the Government Medical College in a critical state. Following the attack, security agencies have cordoned off the entire area. A team of forensic experts reached the spot to investigate the blast. The security agencies have launched a search operation in the area.

"It was a grenade explosion, it has caused injuries to approximately 18 people, all shifted to hospital," MK Sinha, Inspector General of Police (IGP), Jammu said.

According to eyewitnesses, a loud explosion was heard inside a bus. Initially, people thought it was a tyre burst but when they reached the spot it was found out that a grenade has exploded there. So far, no group has claimed the responsibility of the attack.

"I thought it was a tyre burst. it was a big blast. The locals took the injured to the hospital in an ambulance," news agency ANI quoted one of the eyewitnesses as saying.